package com.itheima.ruiji.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.ruiji.common.R;
import com.itheima.ruiji.entity.Employee;
import com.itheima.ruiji.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmplpyeeController {

    @Autowired
    private EmployeeService employeeService;

    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){

        //1.将页面提交的密码进行md5加密处理
        String password = employee.getPassword();
        DigestUtils.md5DigestAsHex(password.getBytes());

        //2.根据用户名查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3.没有返回登录失败
        if(emp == null){
            return R.error("登录失败");
        }

        //4.密码对比
        if(emp.getPassword().equals(password)){
            return R.error("登录失败");
        }

        //5.查看员工状态
        if(emp.getStatus() == 0){
            return R.error("账号已禁用");
        }

        //6.登陆成功，将员工存入Session并返回登录成功
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);

    }

    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    /*
    新增员工
    */
    @PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Employee employee){
        log.info("新增员工，员工信息：{}", employee.toString());


        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

        employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());

        Long empId = (Long) request.getSession().getAttribute("employee");
        employee.setCreateUser(empId);
        employee.setUpdateUser(empId);

        employeeService.save(employee);

        return R.success("新增员工success");
    }

    /*
    查询请求
    * */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){
        log.info("page = {},pageSize = {},name = {}", page, pageSize, name);

        Page pageInfo = new Page(page, pageSize);

        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();

        queryWrapper.like(StringUtils.isNotEmpty(name), Employee::getName, name);

        queryWrapper.orderByDesc(Employee::getUpdateTime);

        employeeService.page(pageInfo, queryWrapper);

        return R.success(pageInfo);
    }

    @PutMapping
    public R<String> updata(HttpServletRequest request, @RequestBody Employee employee){
        log.info(employee.toString());

        long id = Thread.currentThread().getId();
        log.info("线程id为：{}", id);

        Long empId = (Long)request.getSession().getAttribute("employee");
        employee.setUpdateTime(LocalDateTime.now());
        employee.setUpdateUser(empId);
        employeeService.updateById(employee);

        return R.success("employee revise sucess.");
    }

    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("查询员工信息..");
        Employee employee = employeeService.getById(id);
        if(employee != null){
            return R.success(employee);
        }
        return R.error("未查询到信息");


    }

}
